Hemodynamic Assessment of Cervical Internal Carotid Artery Stenosis During Head Manipulation: Case Report

Positional intermittent carotid ischemia has rarely been reported in the literature. We report a case of fluctuating hemiparesis in a 88-year-old woman in whom transcranial Doppler ultrasonography at various head positions proved useful in establishing the mechanism of the hypoperfusion transient is...

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Veröffentlicht in:	Journal of stroke and cerebrovascular diseases 2011-09, Vol.20 (5), p.479-481
Hauptverfasser:	Sebastian, Joseph, MD, Derksen, Carol, RN, RVT, Khan, Khurshid, MD, FRCPC, Saqqur, Maher, MD, FRCPC
Format:	Artikel
Sprache:	eng
Schlagworte:	Aged, 80 and over Blood Flow Velocity Cardiovascular Carotid Artery, Internal - diagnostic imaging Carotid Artery, Internal - physiopathology Carotid Stenosis - complications Carotid Stenosis - diagnostic imaging Carotid Stenosis - physiopathology Cerebral Angiography Cerebrovascular Circulation Female Head Movements Hemodynamics Humans Ischemic Attack, Transient - diagnostic imaging Ischemic Attack, Transient - etiology Ischemic Attack, Transient - physiopathology middle cerebral artery Neurology Paresis - etiology Paresis - physiopathology Patient Positioning Predictive Value of Tests Recurrence Rotation transcranial Doppler ultrasonography Transient ischemic attack Ultrasonography, Doppler, Transcranial
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Beschreibung
Zusammenfassung:	Positional intermittent carotid ischemia has rarely been reported in the literature. We report a case of fluctuating hemiparesis in a 88-year-old woman in whom transcranial Doppler ultrasonography at various head positions proved useful in establishing the mechanism of the hypoperfusion transient ischemic attack. Head rotation to the side of the stenotic internal carotid artery resulted in significant drop in ipsilateral middle cerebral artery mean flow velocity.
ISSN:	1052-3057 1532-8511
DOI:	10.1016/j.jstrokecerebrovasdis.2010.02.009